---
title: "Ranak Shah - Founding Software Engineer in San Francisco | Tal"
description: "Meet Ranak Shah, Founding Engineer at LaneSurf (YC S25) | ex-EthosX (YC S22) | Backend & Distributed Systems | SIH 2023 Winner based in San Francisco. AI stack includes cursor and opencode. Explore public work links including github."
image: "https://tal.club/meet/ranak-shah/share-image"
---

# Ranak Shah on Tal

## Headline

Founding Engineer at LaneSurf \(YC S25\) \| ex\-EthosX \(YC S22\) \| Backend & Distributed Systems \| SIH 2023 Winner

## About

Founding Engineer @Lanesurf \(YC S25\)\. Ex\-EthosX \(YC S22\) building a production prediction markets platform — distributed event\-driven backend, idempotent financial workflows, real\-time trading systems\.

## Location

San Francisco

## AI stack

cursor

opencode

## Work experience

Founding Software Engineer at Lanesurf, Jul 2026 \- Present · 2 mos, San Francisco, California, United States

Full Stack Developer at EthosX \(YC S22\), Dec 2024 \- Jun 2026 · 1 yr 7 mos, Philadelphia, Pennsylvania, United States, Built and shipped a real\-time prediction markets platform, designing backend systems for trading, settlement, and analytics\. Designed event\-driven architecture using Pub/Sub and multi\-worker pipelines \(10\+ workers\) for order execution, retries, and failure recovery\. Developed idempotent financial workflows to ensure correctness and prevent duplicate executions in distributed systems\. Built real\-time pipelines for portfolios, leaderboards, and analytics, handling high\-frequency event streams with strict ordering guarantees\. Worked on trading infrastructure including orderbooks, RFQ\-based matching, and user intent\-driven trade discovery\. Designed and implemented a high\-throughput, scalable key\-value lookup system using DynamoDB with parallel batching and concurrency optimization\. Led migration from on\-chain to off\-chain architecture, backfilling blockchain data and ensuring consistency across systems\. Built APIs, data models, and backend services for trading flows, onboarding, and wallet\-based authentication\. Developed admin dashboards and internal tools for managing markets, users, and settlements\. Optimized frontend performance for real\-time interfaces \(orderbooks, dashboards\), improving rendering efficiency and UX\. Worked on on\-chain/off\-chain reconciliation, handling latency, consistency, and correctness tradeoffs\. Debugged and resolved production issues across backend, frontend, and blockchain layers in a live system\. Collaborated on system design for trading infrastructure including matching engines and execution pipelines\. Reduced infrastructure costs significantly by refactoring integrations and optimizing external dependencies \($2000 → $250/month\)\.

Full Stack Engineer at Medlr, Jun 2024 \- Dec 2024 · 7 mos, Chandigarh, India, Frontend Development Backend Development

## Education

Bachelor of Technology \- BTech, Computer Science, Thapar Institute of Engineering & Technology

Education, Physics,chemistry,maths, Gyan Bharati School \- India

## Public links

- github: https://github\.com/thorlaidanegg

[View the original profile](https://tal.club/meet/ranak-shah)

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